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drm/exynos: fimd: move window protect code to prepare/cleanup_plane 

Only set/clear the update bit in the CRTC's .atomic_begin()/flush()
so all planes are really committed at the same time.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Gustavo Padovan 2015-08-15 13:26:13 -03:00 committed by Inki Dae
parent d9220d4733
commit ce3ff36be9
1 changed files with 34 additions and 23 deletions
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57
drivers/gpu/drm/exynos/exynos_drm_fimd.c
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@ -591,6 +591,16 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
{
u32 reg, bits, val;
/*
* SHADOWCON/PRTCON register is used for enabling timing.
*
* for example, once only width value of a register is set,
* if the dma is started then fimd hardware could malfunction so
* with protect window setting, the register fields with prefix '_F'
* wouldn't be updated at vsync also but updated once unprotect window
* is set.
*/
if (ctx->driver_data->has_shadowcon) {
reg = SHADOWCON;
bits = SHADOWCON_WINx_PROTECT(win);
@ -607,6 +617,28 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
writel(val, ctx->regs + reg);
}
static void fimd_atomic_begin(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct fimd_context *ctx = crtc->ctx;
if (ctx->suspended)
return;
fimd_shadow_protect_win(ctx, plane->zpos, true);
}
static void fimd_atomic_flush(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct fimd_context *ctx = crtc->ctx;
if (ctx->suspended)
return;
fimd_shadow_protect_win(ctx, plane->zpos, false);
}
static void fimd_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
@ -622,20 +654,6 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
if (ctx->suspended)
return;
/*
* SHADOWCON/PRTCON register is used for enabling timing.
*
* for example, once only width value of a register is set,
* if the dma is started then fimd hardware could malfunction so
* with protect window setting, the register fields with prefix '_F'
* wouldn't be updated at vsync also but updated once unprotect window
* is set.
*/
/* protect windows */
fimd_shadow_protect_win(ctx, win, true);
offset = plane->src_x * bpp;
offset += plane->src_y * pitch;
@ -707,9 +725,6 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
if (ctx->driver_data->has_shadowcon)
fimd_enable_shadow_channel_path(ctx, win, true);
/* Enable DMA channel and unprotect windows */
fimd_shadow_protect_win(ctx, win, false);
if (ctx->i80_if)
atomic_set(&ctx->win_updated, 1);
}
@ -723,16 +738,10 @@ static void fimd_disable_plane(struct exynos_drm_crtc *crtc,
if (ctx->suspended)
return;
/* protect windows */
fimd_shadow_protect_win(ctx, win, true);
fimd_enable_video_output(ctx, win, false);
if (ctx->driver_data->has_shadowcon)
fimd_enable_shadow_channel_path(ctx, win, false);
/* unprotect windows */
fimd_shadow_protect_win(ctx, win, false);
}
static void fimd_enable(struct exynos_drm_crtc *crtc)
@ -875,8 +884,10 @@ static const struct exynos_drm_crtc_ops fimd_crtc_ops = {
.enable_vblank = fimd_enable_vblank,
.disable_vblank = fimd_disable_vblank,
.wait_for_vblank = fimd_wait_for_vblank,
.atomic_begin = fimd_atomic_begin,
.update_plane = fimd_update_plane,
.disable_plane = fimd_disable_plane,
.atomic_flush = fimd_atomic_flush,
.te_handler = fimd_te_handler,
.clock_enable = fimd_dp_clock_enable,
};